teresa estimate that the height of a giraffe in a zoo is 18 feet in fact it is 16 feet tall waht is teresas percent error
To find Teresa's percent error, we first need to calculate the difference between her estimate and the actual value:
Actual value = 16 feet
Estimated value = 18 feet
Difference = Actual value - Estimated value = 16 - 18 = -2.
Next, we find the absolute value of this difference:
Absolute value of -2 = 2.
Then, we find the relative error by dividing this absolute difference by the actual value and multiplying by 100%:
Relative error = (2 / 16) * 100% = 12.5%.
Therefore, Teresa's percent error is 12.5%.